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Marine Weather and Tides Boulder Creek, CA Version 3.4

NOTICE 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

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Sunrise 7:07AM

Sunset 4:51PM

Saturday December 7, 2019 7:10 AM PST (15:10 UTC)

Moonrise 2:30PM

Moonset 2:32AM

Illumination 81%

NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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7 Day Forecast for Marine Location Near Boulder Creek, CA

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Area Discussion for - San Francisco/Monterey Bay Area, CA

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FXUS66 KMTR 071210 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 410 AM PST Sat Dec 7 2019

SYNOPSIS. Showery conditions through the morning, then another frontal band will move across the district bringing heavier showers and a chance of thunderstorms. Lingering showers on Sunday but trending drier by afternoon. Dry weather returns early next week.

DISCUSSION. as of 3:20 AM PST Saturday . Showers continue to move southward through the district although the front has weakened considerably. The complex upper low is still offshore, and another shortwave can be seen on IR satellite imagery approaching the coast. A lot of lightning is being detected with this impulse, and SPC has most of northern California under the general thunderstorm risk with a bullseye of marginal severe risk including the North Bay in the Day 1 outlook. Thus, it looks more likely for thunderstorm development this afternoon, especially across the North Bay. Therefore, another flash flood watch is warranted for the Kincade Fire burn area to account for possible brief downpours with thunderstorms in this passing shortwave. The current watch expires at 4 am.

This impulse is forecast to move through by this evening, although showers will linger into Sunday.

Winds remain gusty over the higher terrain, but are decreasing. The wind advisory will be canceled before 4 am. Winds are forecast to be gusty again as this next impulse moves through later today, but are expected to be below wind advisory criteria.

High pressure to build back in by Monday bringing drier conditions to the area. The midweek weather system still looks very weak with rain chances very slim.

AVIATION. as of 04:10 AM PST Saturday . Scattered light showers will continue through the morning hours. Skies are mainly MVFR this morning and this is expected to continue through the day. The upper low offshore will push more energy through the area this afternoon. Moderate to potentially heavy rain showers and a chance for thunderstorms will arrive this afternoon as another front pushes through. Winds this morning will gust to 25-30 kt with gusts increasing briefly this afternoon to 30-35 kt along the front. Occasional lulls have been observed at the terminals overnight and this will continue through the morning. LLWS will be a concern at the terminals through the afternoon. Winds will subside this evening after the front passes through. Scattered showers will persist this evening and overnight but rainfall should be light. MVFR cigs will persist through the end of the TAF period.

Vicinity of KSFO . MVFR cigs with bases 2000-2500 feet. Light scattered showers will persist early this morning and should decrease briefly. Scattered thunderstorms are possible this afternoon with moderate to briefly heavy rain. Southeast winds have gusted to around 30 kt overnight mixed with periods of lighter winds. Lulls in stronger winds will continue through the morning hours. Gusty winds 30-35 kt will be possible this afternoon with locally higher gusts in thunderstorms. LLWS will be a concern today especially during periods of lighter winds at the terminal.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Borderline MVFR/VFR this morning with bases 3000-5000 feet. Light rain showers continuing through the day. Gusty south to southeast winds to 20-25 kt at MRY and 30-35 kt in the Salinas Valley. Stronger winds above the surface could cause LLWS at MRY up to 2000 ft. Isolated thunderstorms are now possible into the Monterey Bay terminals this afternoon so VCTS has been added to the TAFs.

MARINE. as of 2:38 AM PST Saturday . A secondary frontal boundary will move through the coastal waters today. Scattered thunderstorms will move into the coastal waters which could produce lightning, gusty winds, and possible waterspouts. Breezy to gusty south to southwest winds will continue through the day today before diminishing this evening. A moderate west swell will continue through Sunday. Steep wind waves will continue through the day today creating hazardous seas.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . SF Bay SCA . Mry Bay SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Reyes to Pigeon Pt 0-10 nm SCA . Pigeon Pt to Pt Pinos 0-10 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm

PUBLIC FORECAST: Sims AVIATION: ST MARINE: ST

Visit us at www.weather.gov/sanfrancisco

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
46042 - MONTEREY - 27NM West of Monterey Bay, CA	25 mi	31 min	SSE 19 G 25	58°F	57°F		1015.6 hPa	57°F
46092 - MBM1	30 mi	64 min	S 19	58°F	57°F		1015 hPa (-0.0)
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA	35 mi	31 min	S 21 G 25	57°F	56°F		1014 hPa	56°F
MLSC1 - Moss Landing, South Harbor, CA	35 mi	39 min	SE 1.9 G 6	56°F			1016.4 hPa	54°F
ELXC1 - Elkhorn Slough Reserve, CA	36 mi	86 min	NNE 4.1	58°F			1015 hPa	56°F
46240 - Cabrillo Point, Monterey Bay, CA (158)	40 mi	41 min			56°F	4 ft
MEYC1	42 mi	95 min			57°F		1015.7 hPa
AAMC1 - 9414750 - Alameda, CA	44 mi	53 min			54°F
LNDC1	46 mi	59 min	SSE 7 G 9.9	60°F			1013.9 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA	46 mi	53 min	E 6 G 13	60°F			1012.3 hPa
OBXC1	47 mi	59 min		59°F				56°F
OKXC1 - 9414776 - Oakland (Berth 34), CA	47 mi	59 min	S 8.9 G 12	58°F			1013.8 hPa
FTPC1 - 9414290 - San Francisco, CA	48 mi	65 min	S 7 G 17	60°F	54°F		1014 hPa
46237 - San Francisco Bar, CA (142)	49 mi	41 min			54°F	11 ft

Wind History for Redwood City, CA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure

Link to 5 minute data for KNUQ

Wind History from NUQ (wind in knots)

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Tide / Current Tables for Ano Nuevo Island, California

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Tide / Current Tables for Santa Cruz, California

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Weather Map

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GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for San Francisco/Monterey Bay Area, CA (10,2,3,4)

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Ground Weather Radar Station San Francisco Bay Area, CA

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